2023
DOI: 10.5194/acp-23-13433-2023
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Spatial and diurnal variations of aerosol organosulfates in summertime Shanghai, China: potential influence of photochemical processes and anthropogenic sulfate pollution

Ting Yang,
Yu Xu,
Qing Ye
et al.

Abstract: Abstract. Organosulfates (OSs) are ubiquitous aerosol components, which has seen intense research over years. However, spatial and diurnal variations in OS formation in polluted atmospheres remain poorly understood. In this study, 130 OS species were quantified (or semi-quantified) in ambient fine particulate matter (PM2.5) collected in urban and suburban Shanghai (East China) in the summer of 2021. Isoprene- and monoterpene-derived OSs were dominant OS groups (averaging 51 % and 19 % of total quantified OSs, … Show more

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Cited by 9 publications
(10 citation statements)
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“…Notably, there may be differences in ionization efficiencies between compound types. However, the exact impacts of ionization efficiency on multifunctional compounds in a complex mixture are uncertain and difficult to evaluate (Ditto et al, 2022b;Yang et al, 2023). Thus, the intercomparison across compound relative abun-dance without considering potentially differentiated ionization efficiency was conducted in this study, which was similar to many previous studies (Xu et al, 2023;.…”
Section: Chemical Analysismentioning
confidence: 71%
“…Notably, there may be differences in ionization efficiencies between compound types. However, the exact impacts of ionization efficiency on multifunctional compounds in a complex mixture are uncertain and difficult to evaluate (Ditto et al, 2022b;Yang et al, 2023). Thus, the intercomparison across compound relative abun-dance without considering potentially differentiated ionization efficiency was conducted in this study, which was similar to many previous studies (Xu et al, 2023;.…”
Section: Chemical Analysismentioning
confidence: 71%
“…This is expected to decrease the total and inorganic sulfur, thereby increasing the contribution of OS to total sulfur in atmospheric aerosol particles (Riva et al, 2019;Brüggemann et al, 2020). With progress in analytical instruments and methods, hundreds of OS compounds have been recently identified from field measurements (Hettiyadura et al, 2017(Hettiyadura et al, , 2019Wang et al, 2021;Huang et al, 2023;Wang et al, 2023;Yang et al, 2023). However, investigation of the physicochemical properties of OS is still lacking due to the scarcity of authentic standards.…”
Section: Discussionmentioning
confidence: 99%
“…The recoveries of several standards including tropinone, sodium camphor sulfonate, potassium phenyl sulfate, sodium methyl sulfate, sodium octyl sulfate, glycolic acid sulfate, lactic acid sulfate, limonaketone sulfate, and α-pinene sulfate were S4 detected to initially evaluate the reliability of the extraction method. The recoveries of these standards varied 84% to 94% (Yang et al, 2023). Thus, we assumed that organic matter in the samples can be effectively extracted in large quantities.…”
Section: Table Of Contentsmentioning
confidence: 99%